Ferroelectricity in Perovskites with s~0 A-Site Cations: Toward Near-Room-Temperature Multiferroics

摘要

Magnetic ferroelectric (FE) materials (that is, multiferroics) have received much attention and can have wide technological applications owing to the possibility of controlling their electric properties and their magnetic properties by electric fields. An important class of multiferroic and FE materials is based on perovskites, ABO3, with two different cations A and B (for example A~(2+) and B~(4+) or A~(3+) and B~(3+)), in which corner-sharing BO6 octahedra form the three-dimensional lattice with every B8 cube containing one A cation.